Kills 99.9% of odor-causing bacterianCleans in just 90 secondsnDissolves fast for a quick cleannPower Clean Crystals reduce plaque buildup, remove food particles that can cause gum irritation and is able to kill 99.9% of odor-causing bacteria in just 90 seconds! In addition, Efferdent Power Clean Crystals Denture Cleanser dissolves fast for a quick and efficient clean. Your smile will speak for itself when it comes to using Power Clean Crystals.